MegaPlump™ Waterproof MascaraPlump up the volume! What's better than an instant plumping formula for plush, dramatic lashes? One that can stay put against water too! Get 3 times the volume with this waterproof mascara that amplifies and plumps for plush, dramatic lashes. This waterproof formula delivers thicker lashes in an instant and stays on through tears, humidity, rain, and even while swimming.